Figure 2.

Fluorescein isothiocyanate dextran-4 KD (FD-4) probe permeation measure of intact (Control) and H₂O₂-compromised gut epithelium in the presence or absence of physiologic (0.1 μM) and supraphysiologic (5 μM) doses of T4. Probe permeation was measured for 2 hr at 30 min interval. Each bar shows Mean±SEM of the data collected from 4 to 5 individual experiments. *P<0.05, significant differences in comparison with corresponding time points of control culture. #P<0.05, significant differences in comparison with corresponding time points of H₂O₂-treated cultures (H₂O₂)